Adsorption of colored pollutants from distillery spent wash by native and treated fungus: neurospora intermedia.

Environmental Science and Pollution Research International
Garima Kaushik, Indu Shekhar Thakur

Abstract

The native and physico-chemically treated fungal biomasses of Neurospora intermedia were used for adsorption of colored pollutants from distillery spent wash in batch systems. Experiments were conducted at varying color concentrations of the effluent (1,000-6,500 CU). The kinetics of effect of initial sorbate concentration, dose of biosorbent, temperature, and pH on adsorption were studied. Physical and chemical pretreatments of biomass resulted in an increase or decrease in color removal capacity. This effect was further studied by FTIR analysis of the dried fungal mycelium. The maximum color uptake on all the tested fungal biomass preparations was observed at pH 3.0 and temperature 30 °C, within first 4 h. The Langmuir and Freundlich adsorption models were used for the mathematical description of the biosorption equilibrium and the data showed an optimal fit to these isotherms. Kinetic parameters indicated the dominance of Lagergren pseudo first-order kinetic model for adsorption. On the basis of maximum adsorption capacity, the color removal capacity by fungal preparations was in the order of native > heat > acid, base.

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Citations

Nov 8, 2012·Environmental Science and Pollution Research International·S NethajiA B Mandal
Jan 5, 2013·Environmental Science and Pollution Research International·Abuzer Çelekli, Hüseyin Bozkurt
Dec 4, 2014·International Journal of Environmental Research and Public Health·Xin QiaoYinbing Bian
Jan 30, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Marta WilkEwa Walaszczyk

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